function popup(url,id,w,h) 
{ 
        if (w == null) w = 750;
        if (h == null) h = 450;
        
        if (w > 800) w = 800;
        if (h > 600) h = 600;
        
	x = (800 - w)/2;
        y = (600 - h)/2;    
	if (screen) 
	{
	    y = (screen.availHeight - h)/2;
	    x = (screen.availWidth - w)/2;
	}    
        window.open(url,id,'width='+w+',height='+h+',resizable=yes,scrollbars=yes,left='+x+',top='+y+',screenX='+x+',screenY='+y+',status=yes');
}       
// to update Website Content
    

function echeck(str) {
	var at="@"
	var dot="."
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)
	if (str.indexOf(at)==-1){
		alert("Invalid E-mail ID")
		return false
	}

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		alert("Invalid E-mail ID")
		return false
	}

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		alert("Invalid E-mail ID")
		return false
	}

	if (str.indexOf(at,(lat+1))!=-1){
		alert("Invalid E-mail ID")
		return false
	}

	if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		alert("Invalid E-mail ID")
		return false
	}

	if (str.indexOf(dot,(lat+2))==-1){
		alert("Invalid E-mail ID")
		return false
	}

	if (str.indexOf(" ")!=-1){
		alert("Invalid E-mail ID")
		return false
	}

	return true
}
function SubmitQuery()
{
var frm=document.frm_1;
	var emailID=document.frm_1.strEmail;	
	if(frm.strName.value=="")
		{
			alert("Name Can not be left Blank");
			frm.strName.focus();
			return false;
		}
	else if (echeck(emailID.value)==false)
	{
		emailID.value=""
		emailID.focus()
		return false;
		
	}
	else if(frm.strQuestion.value=="")
		{
			alert("Can not be left Blank");
			frm.strQuestion.focus();
			return false;
		}		
	else
		{
		frm.action="contactus.php";
		frm.submit();
		}
}