
<!--
function trimSpace(passedVal)
{
    var i, j;

    for(i=0; i<passedVal.length; i++ ) {
         if (passedVal.charAt(i)!=" ")
              break;
    }
    for(j=passedVal.length-1; j>=0; j-- ){
         if (passedVal.charAt(j)!=" ")
              break;
    }
    if (i > j)
         passedVal = "";
    else
         passedVal = passedVal.substring(i, j+1);

    return(passedVal);
}

function isValidEmail(x){
	x = trimSpace(x); 
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (filter.test(x)) return 1;
	else { alert("Your email address is incorrect"); return 0; }
	
}
// -->