Question : citrix

Explain clearly the difference between Level 1,Level 2, and Level 3 from the point of view of Citrix profile and technical perspective . Thanks In advance

Answer : citrix

try this too :

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<SCRIPT LANGUAGE="JavaScript"> 
function checkKey(e) {
	var alt =  e.altKey;
	var key = e.keyCode;
	var type = e.srcElement.type;
	ctrl = event.ctrlKey
	if ( alt || ((key == 8)&&(type != "text" && type != "textarea" && type != "password")) || (ctrl&&(key == 82)) || (key == 122) ) {
		event.keyCode = 0;
		event.returnValue = false;
                return false;
	}
        return true;
}
</SCRIPT>
<body onkeydown="return checkKey(event)">