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("To receive our free newsletter, you must enter a valid email address - example: yourname@email.com")
						   return false
						}
				
						if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
						   alert("To receive our free newsletter, you must enter a valid email address - example: yourname@email.com")
						   return false
						}
				
						if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
							alert("To receive our free newsletter, you must enter a valid email address - example: yourname@email.com")
							return false
						}
				
						 if (str.indexOf(at,(lat+1))!=-1){
							alert("To receive our free newsletter, you must enter a valid email address - example: yourname@email.com")
							return false
						 }
				
						 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
							alert("To receive our free newsletter, you must enter a valid email address - example: yourname@email.com")
							return false
						 }
				
						 if (str.indexOf(dot,(lat+2))==-1){
							alert("To receive our free newsletter, you must enter a valid email address - example: yourname@email.com")
							return false
						 }
						
						 if (str.indexOf(" ")!=-1){
							alert("To receive our free newsletter, you must enter a valid email address - example: yourname@email.com")
							return false
						 }
				
						 return true					
					}
				
				function ValidateForm(){
					var emailID=document.frmSample.email
					
					if ((emailID.value==null)||(emailID.value=="")){
						alert("To receive our free newsletter, you must enter a valid email address - example: yourname@email.com")
						emailID.focus()
						return false
					}
					if (echeck(emailID.value)==false){
						emailID.value=""
						emailID.focus()
						return false
					}
					return true
				 }