// JavaScript Document

function validateEmail(email)
{
		var error_Msg="Enter your E-mail address\n\n";
		
			if((document.form1.email.length==0)||(document.form1.email.value==""))//if email field is left blank
			{	
						error_Msg+="cannot be left blank";	
						alert(error_Msg);
						document.form1.email.focus();
											
			}
			
			else{
			if (document.form1.email.value.search
				(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1) {
					return true;
					} 
					else 
					{
							error_Msg+="Your email should be you@yourdomain.xxx\n\n";			
							alert(error_Msg);
							document.form1.email.value="";
							document.form1.email.focus();
					}

			}
			
		}