function Changewin() {
		tempName = top.name + 0;
		
		if (!(tempName > 0)) {
			tempName = Date();
			tempName = Date.parse(tempName);
			window.open("default.aspx",tempName,"menubar=no,toolbar=no,directories=no,scrollbars=no,location=no,status=yes,resizable=yes,top=0,left=0")//,width=" + screen.availWidth + ",height=" + screen.availHeight);
			
			//window.opener = window;
			//window.close();
			window.location.href = "systemOpened.htm";
			return true;
		} else {
			return false;
		}
	};
	
	/*
	document.oncontextmenu = function(){return false};
	
	if(document.layers) {
	    window.captureEvents(Event.MOUSEDOWN);
	    window.onmousedown = function(e){
	        if(e.target==document)return false;
	    }
	}
	else {
	    document.onmousedown = function(){return false}
	};
	
	function HandleKeys(){
	    var key = event.keyCode, ctrl = event.ctrlKey;
		
		if (key>=112 && key<=123){
	        event.keyCode = 0;
	        event.cancelBubble = true;
	        //document.execCommand('Refresh');
	        return false;
	    }

	    if (ctrl && (key==67 || key==88 || key==80 || key==78 || key==82 || key==79 || key==76 || key==69 || key==73 || key==72 || key==85)){
	        event.keyCode = 0;
	        event.cancelBubble = true;
	        return false;
	    }
	};
	
	document.onkeydown = HandleKeys;	
	*/