window.onload = function() {
	disableSelection(document.body)
}
 
function disableSelection(target){
if (typeof target.onselectstart!="undefined") //IE 
	target.onselectstart=function(){return false}
else if (typeof target.style.MozUserSelect!="undefined") //Firefox 
	target.style.MozUserSelect="none"
else //All other ie: Opera
	target.onmousedown=function(){return false}
target.style.cursor = "default"
}