var processKey = true;

function DefaultButton(e) {
	if (document.all){
		if(event == null)
			return false;
		if(processKey == null)
			return false;
		
		if (event.keyCode == 13) { 
			if(!processKey) {
				processKey = true;
			} else {
				event.returnValue=false;
				event.cancel = true;
				var obj = document.getElementById('DefaultButtonName');
				if(obj == null)
				   obj = document.getElementById('ctl00_DefaultButtonName');
				if(obj != null) {
					if(obj.value != null && obj.value != '') {
						var button = document.getElementById(obj.value);
						if(button != null) {
							button.click();
						}
					}
				}
			}
		} 
	} else {
		if(e.which) {
			if(e.which == 13) {
				var obj = document.getElementById('DefaultButtonName');
				if(obj == null)
				   obj = document.getElementById('ctl00_DefaultButtonName');
				if(obj != null) {
					var button = document.getElementById(obj.value);
					if(button != null) {
						button.click();
					}
				}
				else
				{
				    return false;
				}
			}
		}
	}
}

function DoNotProcessEnterKey(e) {
	if (event.keyCode == 13) { 
		processKey = false;
	} else {
		if(e.which == 13) {
			processKey = false;
		}
	}
}