function mw_over(imgId,imgFle){
		document.getElementById(imgId).src = 'images/' + imgFle + '_over.gif';
	}
	function mw_out(imgId,imgFle){
		document.getElementById(imgId).src = 'images/' + imgFle;
	}
	function calc(){
		window.open('http://maxwilly.com/calcu.php','','menubar=0,width=350,height=230,resizable=1,scrollbars=1,status=0,titlebar=0,toolbar=0');
	}

	function chOrder(o_id){
		if(document.getElementById('cksel_' + o_id).value == 0){
			document.getElementById('id_' + o_id).src = 'images/sel_' + o_id + '.gif';
			document.getElementById('td_' + o_id).style.backgroundColor = '#ededed';
			document.getElementById('prcCon_' + o_id).style.backgroundColor = '#ededed';
			document.getElementById('tr_' + o_id).style.cursor = 'pointer';
		}
		else{
			document.getElementById('tr_' + o_id).style.cursor = 'default';
		}
	}
	function ouOrder(o_id){
		if(document.getElementById('cksel_' + o_id).value == 0){
			document.getElementById('id_' + o_id).src = 'images/dis_' + o_id + '.gif';
			document.getElementById('td_' + o_id).style.backgroundColor = '#f1f1f1';
			document.getElementById('prcCon_' + o_id).style.backgroundColor = '#f1f1f1';
		}
	}
	function dnOrder(o_id){
			document.location.href = 'cart1.php?prodId=' + o_id + '&act=add';
	}
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
	function isValidEmail(email, required) {
		if (required==undefined) {   // if not specified, assume it's required
			required=true;
		}
		if (email==null) {
			if (required) {
				return false;
			}
			return true;
		}
		if (email.length==0) {  
			if (required) {
				return false;
			}
			return true;
		}
		if (! allValidChars(email)) {  // check to make sure all characters are valid
			return false;
		}
		if (email.indexOf("@") < 1) { //  must contain @, and it must not be the first character
			return false;
		} else if (email.lastIndexOf(".") <= email.indexOf("@")) {  // last dot must be after the @
			return false;
		} else if (email.indexOf("@") == email.length) {  // @ must not be the last character
			return false;
		}
		
		return true;
	}

	function allValidChars(email) {
	  var parsed = true;
	  var validchars = "abcdefghijklmnopqrstuvwxyz0123456789@.-";
	  for (var i=0; i < email.length; i++) {
		var letter = email.charAt(i).toLowerCase();
		if (validchars.indexOf(letter) != -1)
		  continue;
		parsed = false;
		break;
	  }
	  return parsed;
	}


	function validateCForm(){

		var t1 = document.getElementById("t1").value;
		var t2 = document.getElementById("t2").value;
		var t3 = document.getElementById("t3").value;

		if (t1 == ""){
			document.getElementById("er_1").style.display = 'block';
			document.getElementById("t1").focus();
			return false;
		}
		else{
			document.getElementById("er_1").style.display = 'none';
		}


		if (t2 == ""){
			document.getElementById("er_2").style.display = 'block';
			document.getElementById("t2").focus();
			return false;
		}
		else{

			if (! isValidEmail(document.getElementById("t2").value)) {
				document.getElementById("er_2").style.display = 'none';
				document.getElementById("er_4").style.display = 'block';
				document.getElementById("t2").focus();
				return false;
			}
			else{
				document.getElementById("er_4").style.display = 'none';
			}

		}

		if (t3 == ""){
			document.getElementById("er_3").style.display = 'block';
			document.getElementById("t3").focus();
			return false;
		}
		else{
			document.getElementById("er_3").style.display = 'none';
		}

	}