function pub_check(form) {
	if (form.sterms.value == "") {
		alert("Please provide a search criteria.");
		return false;
	}
	else
		return true;
}

function checkform(form) {
	if ((form.name.value=="") || (form.address.value=="") || (form.city.value=="") || (form.state.value=="") || (form.zip.value=="")) {
		alert("Please fill out all required fields");
		return false;
	}
	else
		return true;
}

function regcheck(form) {
	if ((form.fname.value=="") || (form.lname.value=="") || (form.add.value=="") || (form.city.value=="") || (form.zip.value=="")) {
		alert("Please fill out all required fields");
		return false;
	}
	else if (form.state.selectedIndex == 0) {
		alert("Please fill out all required fields");
		return false;
	}
	else
		return true;
}

function handleSearch() {
	document.sitesearch.qp.value = "NISearch";
	if(document.sitesearch.qp.value == "NISearch"){
		win=window.open('','myWin'); 
 		document.sitesearch.target='myWin';
		document.sitesearch.action = "http://newsinfo.nd.edu/searchresults.cfm";
		document.sitesearch.method = "POST";
	}
	document.sitesearch.submit();
}

function showoptions(name, type) {
	obj = document.getElementsByTagName(type);
       for (i=0; i<obj.length; i++)
     {
            if (obj[i].id == name)
          obj[i].style.display = 'block';
     }
}

function hideoptions(name, type) {
      obj = document.getElementsByTagName(type);
       for (i=0; i<obj.length; i++)
     {
            if (obj[i].id == name)
          obj[i].style.display = 'none';
     }
}

function coursedesc(name, type) {
	obj = document.getElementsByTagName(type);
	for (i=0; i<obj.length; i++) {
    	if (obj[i].id == name) {
			if (obj[i].style.display == 'block')
	        	obj[i].style.display = 'none';
			else
				obj[i].style.display = 'block';
		}
	}
}

function goSearch(letter) {
	stype = document.typeform.stype.selectedIndex;
	window.location = "search.php?stype=" + stype + "&letter=" + letter;
}

function menuJump(form) {
	stype = form.stype.selectedIndex;
	letter = form.letter.value;
	window.location = "search.php?stype=" + stype + "&letter=" + letter;
}

function mail_check(form) {
	if ((form.name.value=="") || (form.email.value=="") || (form.subject.value=="") || (form.message.value=="")) {
		alert("Please fill out all required fields");
		return false;
	}
	else
		return true;
}

function popUp(URL,wwidth,wheight) {
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width=" + wwidth + ",height=" + wheight + "');");
}

function moviePopUp(URL,wwidth,wheight) {
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=" + wwidth + ",height=" + wheight + "');");
}

function search_type(stype) {
	var params = "stype=" + stype;
	var myAjax = new Ajax.Updater('pubsearch','getform.php',{method: 'post', parameters: params, onCreate: setSpinner("pubsearch")});
}

function additionals(instance) {
	var last = instance - 1;
	//document.getElementById("Submit").disabled = true;
	document.getElementById("plus"+last).disabled = true;
	if (last > 0)
		document.getElementById("minus"+last).disabled = true;
	document.getElementById("upbound").value = instance;
	var params = "instance=" + instance;
	var myAjax = new Ajax.Updater('additional'+instance,'getform.php',{method: 'post', parameters: params, onCreate: setSpinner('additional'+instance)});
}

function stepback(instance) {
	var last = instance - 1;
	document.getElementById("additional"+instance).innerHTML = "";
	document.getElementById("plus"+last).disabled = false;
	if (last > 0)
		document.getElementById("minus"+last).disabled = false;
	document.getElementById("upbound").value = last;
}

function setSpinner(spinnum) {
	document.getElementById(spinnum).innerHTML="<p align=\"center\"><img src=\"../images/spinning_gear.gif\" alt=\"\" /></p>";
}

function pubkeycheck() {
	upbound = document.getElementById("upbound").value;
	checker = 0;
	if (upbound>0) {
		for (i=0;i<upbound;i++) {
			for (j=i+1;j<=upbound;j++) {
				if (document.getElementById("keyword"+i).options[document.getElementById("keyword"+i).selectedIndex].value == document.getElementById("keyword"+j).options[document.getElementById("keyword"+j).selectedIndex].value) {
					checker = 1;
					break;
				}
			}
		}
	}
	if (checker == 1) {
		alert("You cannot search for the same keyword twice");
		return false;
	}
	else
		return true;
}

function enabsub() {
	document.getElementById("Submit").disabled = false;
}