function ValidateSearch(){
		if(document.forms.search.searchbox.value == "") {
			alert('You must enter search criteria.');
		} else {
			document.forms.search.submit();
		}
	}

	function AdvValidate() {
		if(document.forms.advancedsearch.withall.value == "" && document.forms.advancedsearch.exact.value == "" && document.forms.advancedsearch.atleast.value == "" && document.forms.advancedsearch.without.value == "") {
				alert('You must enter search criteria');
		} else {
			document.forms.advancedsearch.submit();
		}
	}

	function ValidateSelection(){
		var blnSelected=false;
		if (!isNaN(document.forms.searchadd.chkOrder.length)) {
			for (var x=0;x<document.forms.searchadd.chkOrder.length;x++) {
				if (document.forms.searchadd.chkOrder[x].checked) {
					blnSelected=true;
					break;
				}
			}
		} else {
			if(document.getElementById("chkOrder").checked)
				blnSelected=true;
		}
		if(!blnSelected) {
			alert('You must select one or more library items before proceeding by clicking the checkbox to the right of the item you wish to rent.');
		} else {
			document.forms.searchadd.submit();
		}
	}