function swapImage(imgName, fileName) {
	if(document.images) {
	var imgToChange="document." + imgName;
	imgToChange=eval(imgToChange);
	imgToChange.src=fileName;
	}
}

function preLoad() {
	if(document.images) {
		if(!document.imageArray) {
			document.imageArray=new Array();
			var i = document.imageArray.length;
			var a = preLoad.arguments;
			for(i=0; i<a.length; i++) {
				document.imageArray[i] = new Image; 
				document.imageArray[i].src=a[i];
			}
		}
	}
}

function formCheck() {
	var val=document.emailform.subscriber.value;
	if ((val.indexOf("@") != -1) && (val.indexOf(".") != -1)) {
		return true;
	} else {
		alert("The address you entered does not appear\n to be a properly formatted email address.\n\n Please check your entry and resubmit.");
		return false;
	}
}

function insertHeight(pagename){
	if (pagename=="current"){
		return 35;
	} else {
		return 24;
	}
}

function leftNav(thispage) {

navElems = new Array();
navElems[0]= "current";
navElems[1]= "openmic";
navElems[2]= "archives";
navElems[3]= "buttons";
navElems[4]= "submissions";
navElems[5]= "help";
navElems[6]= "about";
navElems[7]= "updates";
navElems[8]= "concerts";


for (i=0; i < navElems.length; i++) {
		if (i==1) {
			hrefValue = "http://<!--#echo var="SERVER_NAME" -->/templates/topics/topic.php?topicId=1094";
		}	else if (i==3) {
			hrefValue = "http://<!--#echo var="SERVER_NAME" -->/templates/music/";
		}
		else if (i==8) {
			hrefValue = "http://www.npr.org/templates/story/story.php?storyId=4627437";		
		}	else {
			hrefValue = "http://<!--#echo var="SERVER_NAME" -->/programs/asc/" + navElems[i] + "/index.html";
		}
		if(navElems[i]==thispage) {
			output='<A HREF="' + hrefValue + '"><IMG SRC="http://<!--#echo var="SERVER_NAME" -->/programs/asc/images/nav_' + navElems[i] + '_on.gif" ALT="' + navElems[i] + '" WIDTH="170" HEIGHT="' + insertHeight(navElems[i]) + '" BORDER="0" HSPACE="0" VSPACE="0" name="' + navElems[i] + '"></a><BR>'
		} else {
			output='<A HREF="' + hrefValue + '" onMouseOver="swapImage(\'' + navElems[i] + '\',\'http://<!--#echo var="SERVER_NAME" -->/programs/asc/images/nav_' + navElems[i] + '_on.gif\');" onMouseOut="swapImage(\'' + navElems[i] + '\',\'http://<!--#echo var="SERVER_NAME" -->/programs/asc/images/nav_' + navElems[i] + '_off.gif\');"><IMG SRC="http://<!--#echo var="SERVER_NAME" -->/programs/asc/images/nav_' + navElems[i] + '_off.gif" ALT="' + navElems[i] + '" WIDTH="170" HEIGHT="' + insertHeight(navElems[i]) + '" BORDER="0" HSPACE="0" VSPACE="0" name="' + navElems[i] + '"></a><BR>'
		}
		document.write(output);
	}
}

/*
function randoMizer() {
	var number = Math.ceil(Math.random()*3);
	if (number == 1) {
		var surveyWin = window.open('/programs/asc/surveys/popup.html','','width=200,height=180,resizable=no,scrollbars=no');
		if(surveyWin)
			{
				surveyWin.focus();
			}
		setCookie("ascsurvey1", 365, 1);
	}
}

window.cookievalue = checkCookie("ascsurvey1");
if(window.cookievalue != 1) {
		randoMizer();
}
*/

//killCookie("ascsurvey1");