/*
	Standards Compliant Rollover Script
	Author : Daniel Nolan
	http://www.bleedingego.co.uk/webdev.php
*/

function initRollovers() {
	if (!document.getElementById) return
	
	var aPreLoad = new Array();
	var sTempSrc;
	var aImages = document.getElementsByTagName('img');

	for (var i = 0; i < aImages.length; i++) {	
		if (aImages[i].className == 'imgover') {
			var src = aImages[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '_o'+ftype);

			aImages[i].setAttribute('hsrc', hsrc);
			
			aPreLoad[i] = new Image();
			aPreLoad[i].src = hsrc;
			
			aImages[i].onmouseover = function() {
				sTempSrc = this.getAttribute('src');
				this.setAttribute('src', this.getAttribute('hsrc'));
			}	
			
			aImages[i].onmouseout = function() {
				if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_o'+ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
		}
	}
}

window.onload = function () {
	initRollovers();
}

function switchBlock(el,theClass){
	document.getElementById(el).className = theClass; 
}

function OpenSubscribe(){
	var emailaddress = document.getElementById("txtEmailAddress").value;
	var reg1 = /(@.*@)|(\.\.)|(@\.)|(\.@)|(^\.)/; // not valid
	var reg2 = /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3}|[0-9]{1,3})(\]?)$/;      //valid

	if (!reg1.test(emailaddress) && reg2.test(emailaddress)) {
		var url = "http://www.marketvolt.com/CustApp/custnew.asp?accountid=658&sa=658&AX=51831338&WhereFrom=other&EmailAddress=" + escape(emailaddress);
		window.open(url,'MVWin','location=no,menubar=0,status=1,resizable=1,scrollbars=1,toolbar=1');
	}else{
		alert('Please enter a valid email address');
	}
}

function sendToAFriend(){
	if (document.all || document.layers) {
	   w = screen.availWidth;
	   h = screen.availHeight;
	}else{
		w = screen.width;
		h = screen.height;
	}
	
	var popW = 300, popH = 385;
	
	var leftPos = (w-popW)/2, topPos = (h-(popH * 2))/2;

	newWindow = window.open('/send-to-a-friend.php','mainWin','toolbar=no,location=no,scrollbars=no,resizable=no,width='+popW+',height='+popH+',left='+leftPos+',top='+topPos+'');
	newWindow.focus();
}