function showFirstPic(src, width, height) {
  /* $('this').attr('src', $('this').attr('src').replace('&bw=true', '')); */
  var r = resizeImg('pic', width, height, 733, 496);
  $('#pic').attr('src', src);
}

function showPic(src, src_thumb, width, height) {
  /* $('this').attr('src', $('this').attr('src').replace('&bw=true', '')); */
  $('#pic').attr('src', 'img/leer.jpg');
  var r = resizeImg('pic', width, height, 733, 496);
  $('#pic').attr('src', src);
  src_thumb.src = src_thumb.src.replace('&bw=true', '');
}

function showThumbSW(src_thumb) {
  /* $('this').attr('src', $('this').attr('src').replace('&bw=true', '')); */
  src_thumb.src = src_thumb.src + '&bw=true';
}

function checkBrowserName(name){  
    var agent = navigator.userAgent.toLowerCase();  
    if (agent.indexOf(name.toLowerCase())>-1) {  
      return true;  
    }  
    return false;  
}  

function resizeImg(id, width, height, maxWidth, maxHeight) {
			//obj = document.getElementById(id);			
			
			// Get image parameters, and calculate scale
			var x_scale = width / maxWidth;   // X scale
			var y_scale = height / maxHeight; // Y scale
			
			if(height > width){
				new_height = maxHeight;
				new_width = Math.ceil(width / y_scale);
				$('#' + id).attr('height', new_height);
				$('#' + id).attr('width', new_width);
        //obj.height = new_height;
				//obj.width = new_width;
			} else {
				new_height = Math.ceil(height / x_scale);
				new_width = maxWidth; 
        $('#' + id).attr('height', new_height);
				$('#' + id).attr('width', new_width); 
				//obj.height = new_height;
				//obj.width = new_width;
			}
}

/* jQuery.preloader - v0.95 - K Reeve aka BinaryKitten
*                                                                                                                                                                
* v0.95                                                                                                                                                          
*   # Note - keeping below v1 as really not sure that I consider it public usable.                                                                               
*   # But it saying that it does the job it was intended to do.                                                                                                  
*   Added Completion of loading callback.                                                                                                                        
*   Main Reworking With Thanks to Remy Sharp of jQuery for Designers                                                                                             
*                                                                                                                                                                
*                                                                                                                                                                
* v0.9                                                                                                                                                           
*   Fixed .toString being .toSteing                                                                                                                              
*                                                                                                                                                                
* v0.8                                                                                                                                                           
*       Fixed sheet.href being null error (was causing issues in FF3RC1)                                                                                         
*                                                                                                                                                                
* v0.7                                                                                                                                                           
*       Remade the preLoadImages from jQuery to DOM                                                                                                              
*                                                                                                                                                                
* v0.6                                                                                                                                                           
*       Fixed IE6 Compatability!                                                                                                                                 
*       Moved from jQuery to DOM                                                                                                                                 
*                                                                                                                                                                
* v0.5                                                                                                                                                           
*       Shifted the additionalimages loader in the preLoadAllImages so it wasn't called multiple times                                                           
*       Created secondary .preLoadImages to handle additionalimages and so it can be called on itself                                                            
*/                                                                                                                                                               
                                                                                                                                                                 
(function ($) {                                                                                                                                                  
    $.preLoadImages = function(imageList,callback) {                                                                                                             
        var pic = [], i, total, loaded = 0;                                                                                                                      
        if (typeof imageList != 'undefined') {                                                                                                                   
            if ($.isArray(imageList)) {                                                                                                                          
                total = imageList.length; // used later                                                                                                          
                    for (i=0; i < total; i++) {                                                                                                                  
                        pic[i] = new Image();                                                                                                                    
                        pic[i].onload = function() {                                                                                                             
                            loaded++; // should never hit a race condition due to JS's non-threaded nature                                                       
                            if (loaded == total) {                                                                                                               
                                if ($.isFunction(callback)) {                                                                                                    
                                    callback();                                                                                                                  
                                }                                                                                                                                
                            }                                                                                                                                    
                        };                                                                                                                                       
                        pic[i].src = imageList[i];                                                                                                               
                    }                                                                                                                                            
            }                                                                                                                                                    
            else {                                                                                                                                               
                pic[0] = new Image();                                                                                                                            
                pic[0].onload = function() {                                                                                                                     
                    if ($.isFunction(callback)) {                                                                                                                
                        callback();                                                                                                                              
                    }                                                                                                                                            
                }                                                                                                                                                
                pic[0].src = imageList;                                                                                                                          
            }                                                                                                                                                    
        }                                                                                                                                                        
        pic = undefined;                                                                                                                                         
    };                                                                                                                                                           
                                                                                                                                                                 
    $.preLoadCSSImages = function(callback) {                                                                                                                    
        var pic = [], i, imageList = [], loaded = 0, total, regex = new RegExp("url\((.*)\)",'i'),spl;                                                           
        var cssSheets = document.styleSheets, path,myRules,Rule,match,txt,img,sheetIdx,ruleIdx;                                                                  
        for (sheetIdx=0;sheetIdx < cssSheets.length;sheetIdx++){                                                                                                 
            var sheet = cssSheets[sheetIdx];                                                                                                                     
            if (typeof sheet.href == 'string' && sheet.href.length > 0) {                                                                                        
                spl = sheet.href.split('/');spl.pop();path = spl.join('/')+'/';                                                                                  
            }                                                                                                                                                    
            else {                                                                                                                                               
                path = './';                                                                                                                                     
            }                                                                                                                                                    
            myRules = sheet.cssRules ? sheet.cssRules : sheet.rules;                                                                                             
            for (ruleIdx=0;ruleIdx < myRules.length;ruleIdx++) {                                                                                                 
                Rule = myRules[ruleIdx];                                                                                                                         
                txt = Rule.cssText ? Rule.cssText : Rule.style.cssText;                                                                                          
                match = regex.exec(txt);                                                                                                                         
                if (match != null) {                                                                                                                             
                    img = match[1].substring(1,match[1].indexOf(')',1));                                                                                         
                    if (img.substring(0,4) == 'http') {                                                                                                          
                        imageList[imageList.length] = img;                                                                                                       
                    }                                                                                                                                            
                    else if ( match[1].substring(1,2) == '/') {                                                                                                  
                        var p2 = path.split('/');p2.pop();p2.pop();p2x = p2.join("/");                                                                           
                        imageList[imageList.length] = p2x+img;                                                                                                   
                    }                                                                                                                                            
                    else {                                                                                                                                       
                        imageList[imageList.length] = path+img;                                                                                                  
                    }                                                                                                                                            
                }                                                                                                                                                
            };                                                                                                                                                   
        };                                                                                                                                                       
                                                                                                                                                                 
        total = imageList.length; // used later                                                                                                                  
        for (i=0; i < total; i++) {                                                                                                                              
            pic[i] = new Image();                                                                                                                                
            pic[i].onload = function() {                                                                                                                         
                loaded++; // should never hit a race condition due to JS's non-threaded nature                                                                   
                if (loaded == total) {                                                                                                                           
                    if ($.isFunction(callback)) {                                                                                                                
                        callback();                                                                                                                              
                    }                                                                                                                                            
                }                                                                                                                                                
            };                                                                                                                                                   
            pic[i].src = imageList[i];                                                                                                                           
        }                                                                                                                                                        
                                                                                                                                                                 
    };                                                                                                                                                           
    $.preLoadAllImages = function(imageList,callback) {                                                                                                          
        if (typeof imageList != 'undefined') {                                                                                                                   
            if ($.isFunction(imageList)) {                                                                                                                       
                callback = imageList;                                                                                                                            
            }                                                                                                                                                    
            else if (!$.isArray(imageList)) {                                                                                                                    
                imageList = [imageList];                                                                                                                         
            }                                                                                                                                                    
        }                                                                                                                                                        
        $.preLoadCSSImages(function(){                                                                                                                           
            if (imageList.length > 0) {                                                                                                                          
                $.preLoadImages(imageList,function(){                                                                                                            
                    callback();                                                                                                                                  
                });                                                                                                                                              
            }                                                                                                                                                    
            else {                                                                                                                                               
                callback();                                                                                                                                      
            }                                                                                                                                                    
        });                                                                                                                                                      
    }                                                                                                                                                            
})(jQuery);