// JavaScript Document

   function IsEmail(fld) {

			if(fld.value) {
			splitTh = fld.value.split(',');
			lenTh = splitTh.length;
				for(i=0;i<lenTh;i++) {

					if( (splitTh[i].length < 9) || (splitTh[i].indexOf('@') == -1) || (splitTh[i].indexOf('.') == -1) ) {
						alert("Invalid email format!");
						fld.focus();
						return false;
					}
				}
			}
			return true;
   }