function makePopUp(urlValue,widthValue,heightValue) {
    var leftPos = (screen.availWidth-100) / 2;
    var topPos = (screen.availHeight-100) / 2;
    NewWidthValue=widthValue+20;
    NewHeightValue=heightValue+20;
    window.open(urlValue, 'PopUpWindow','width='+NewWidthValue+',height='+NewHeightValue+',menubar=0,scrollbars=no,resizable=no,statusbar=no,location=no,titlebar=0,toolbar=0,status=0,top=' + topPos + ',left=' + leftPos);
}
function getLayer(name) {
	return (document.all)?document.all[name]:document.getElementById(name);
} 
function checkSearchForm(txtField, error) {
  if (txtField.value == '') {
    event.returnValue=false;
    alert(error);
  }
}


function addtocart(id, formName ,error){
	//alert(id+"\n"+formName);
	obj = eval('document.forms.'+formName);
	qty = eval("document.forms."+formName+".elements['Quantity["+id+"]']");
	prd = eval("document.forms."+formName+".elements['Product["+id+"]']");
	if(!qty || isNaN(qty.value) || qty.value < 1) {
		alert(error);
		//qty.value=1;
		return false;
	} else {
		prd.value=1;
		obj.submit();
	}
}