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){
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    return false
		}
		 if (str.indexOf(at,(lat+1))!=-1){
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    return false
		 }
		 if (str.indexOf(dot,(lat+2))==-1){
		    return false
		 }
		 if (str.indexOf(" ")!=-1){
		    return false
		 }
 		 return true					
}
function check_form(frmcheck)
{
	
	if(frmcheck.bname.value == "")
	{
		alert("Please enter Business Name");
		frmcheck.bname.focus();
		return false;
	}
	if(frmcheck.cname.value == "")
	{
		alert("Please enter Contact Name");
		frmcheck.lname.focus();
		return false;
	}
	if(!echeck(frmcheck.email.value))
	{
		alert("Invalid E-mail ID");
		frmcheck.email.focus();
		return false;
	}
	
	/*if(frmcheck.upload_banner.value == "")
	{
		alert("Please enter Banner Url");
		frmcheck.upload_banner.focus();
		return false;
	}
	
	if(frmcheck.banner_to.value == "")
	{
		alert("Please enter Banner to redirect to");
		frmcheck.banner_to.focus();
		return false;
	}*/
 }