//This navigates to url depending on what option is selected in otherSitesCmb
function NavigateTo() {
	//get the object
	var otherSitesCmb = document.getElementById('otherSites');
	//redirect to site depending on what is selected.
	document.location.href=otherSitesCmb.options[otherSitesCmb.selectedIndex].value;
}

function popupWindow(page, width, height) {
	var options = 'width=' + width + ',height=' + height + ',top=20,left=20,resizable=1,menubar=1,scrollbars=1,location=1,status=1';
	var popup;
	
	popup =  window.open(page, 'PopupWindow', options);
	
	if (document.layers) {
		popup.setResizable(true);
	}
	
	popup.resizeTo(width, height);
	popup.focus();
}

function doRollupNav(whichNav) {
	eval(document.forms[whichNav].submit());
}


/**************************/
/* double drop down stuff */
/**************************/

var mode = "normal";
/* Double-dropdown functions */
function qualificationSelectChange() {
	var qid = document.qualificationFinder.qid.value;
	var sid = document.qualificationFinder.sid.value;

	if(qid=="")
		return;
	if(mode=="qualificationId") {
		location.href = "/structure.aspx?id=" + qid;
		return;
	}
	else if(mode=="subjectId" && sid != "") {
		location.href = "/structure.aspx?id=" + sid;
	}
	disableDropDowns();
	document.getElementById("dropDownRefresh").src = "/DropDownRefresh.aspx?qid=" + qid;
}

function subjectSelectChange() {
	var sid = document.qualificationFinder.sid.value;
	var qid = document.qualificationFinder.qid.value;
	
	if(sid=="")
		return;
	if(mode=="subjectId") {
		location.href = "/structure.aspx?id=" + sid;
		return;
	}
	if(mode=="qualificationId" && qid != "") {
		location.href = "/structure.aspx?id=" + qid;
		return;
	}
	disableDropDowns();
	document.getElementById("dropDownRefresh").src = "/DropDownRefresh.aspx?sid=" + sid;
}

function disableDropDowns() {
	document.qualificationFinder.qid.disabled = true;
	document.qualificationFinder.sid.disabled = true;
	document.qualificationFinder.go.disabled = true;
}

function setMode(newMode) {
	mode = newMode;
}

function doSubmit() {
	var qid = document.qualificationFinder.qid.value;
	var sid = document.qualificationFinder.sid.value;
	
	if(qid != "") {
		location.href = "/structure.aspx?id=" + qid;
		return false;
	}
	else if(sid != "") {
		location.href = "/structure.aspx?id=" + sid;
		return false;
	}
}