registerSetupFunction('img[src=big\-feed\-icon\.gif]',function(img){
	if(lteie6){return;} // don't do it for ie6 and below!
	img.src=img.src.replace(/\.gif$/,'.png');
},true);

// initialize the auto-clearing form field functionality

registerSetupFunction('label[for=^q$]',function(label){
	var labelFor=label.htmlFor;
	var input=document.getElementById(labelFor);
	if(!input){return;}
	if(input.defaultValue.match(/^\s*$/)){input.defaultValue=input.value=elemText(label);}
	input.onfocus=function(){
		if(this.value==this.defaultValue){
			this.value='';
		};
	};
	input.onblur=function(){
		if(this.value==''){
			this.value = this.defaultValue;
		}
	};
});