if(document.images) {
    thoughts_std=new Image;
    thoughts_ask=new Image;
    thoughts_contact=new Image;
    thoughts_tips=new Image;
    thoughts_about=new Image;
    thoughts_faq=new Image;
    thoughts_test=new Image;
                
    thoughts_std.src="images/thoughts.gif";
    thoughts_ask.src="images/thoughts_ask.gif";
    thoughts_contact.src="images/thoughts_contact.gif";
    thoughts_tips.src="images/thoughts_tips.gif";
    thoughts_about.src="images/thoughts_about.gif";
    thoughts_faq.src="images/thoughts_faq.gif";
    thoughts_test.src="images/thoughts_test.gif";
 }
 
 function ask(ImgName){
    if(document.images){
       document[ImgName].src=eval(ImgName+"_ask.src");
    }
 }
 
 function contact(ImgName){
    if(document.images){
       document[ImgName].src=eval(ImgName+"_contact.src");
    }
 }
 
 function tips(ImgName){
    if(document.images){
       document[ImgName].src=eval(ImgName+"_tips.src");
    }
 }
 
 function about(ImgName){
    if(document.images){
       document[ImgName].src=eval(ImgName+"_about.src");
    }
 }
 
 function faq(ImgName){
    if(document.images){
       document[ImgName].src=eval(ImgName+"_faq.src");
    }
 }
 
 function test(ImgName){
    if(document.images){
       document[ImgName].src=eval(ImgName+"_test.src");
    }
 }
 
 function turnOff(ImgName){
 if(document.images){
       document[ImgName].src=eval(ImgName+"_std.src");
    }
 }

 function changeBg(obj, newColor) {
 	obj.style.backgroundColor=newColor
 }