function changecss(theClass,element,value) {
	
	/*IE*/
	if(document.all){
		document.styleSheets[1].addRule(theClass, element + ":" + value);
	}
	else{
		document.styleSheets[1].insertRule(theClass + "{" + element + ":" + value + ";}",document.styleSheets[1].cssRules.length);
	}
}