window.onerror = function(){
return true;
}
function doCopy(ID) { 
	if (document.all){
		 textRange = document.getElementById(ID).createTextRange(); 
		 textRange.execCommand("Copy"); 
		 alert("复制成功！");  
	}
	else{
		 copyToClipboard(document.getElementById(ID).value);
	}
}