function externalLinks() { 
	if (!document.getElementsByTagName) return; 
		var anchors = document.getElementsByTagName("a"); 
		for (var i=0; i<anchors.length; i++) { 
			var anchor = anchors[i]; 
			if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external") {
				anchor.target = "_blank";
			}
		} 
	}
	
window.onload = function() {
	externalLinks();
}







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("Please enter a correct email address")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Please enter a correct email address")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Please enter a correct email address")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Please enter a correct email address")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Please enter a correct email address")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Please enter a correct email address")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Please enter a correct email address")
		    return false
		 }

 		 return true					
	}
	
function checkform ( checkForm )
{
    if (checkForm.Fname.value == "") {
        alert( "Please enter your name." );
        checkForm.Fname.focus();
        return false ;
    }
	
	
	
	if ((checkForm.email.value==null)||(checkForm.email.value=="")){
		alert("Please Enter your Email Address")
		checkForm.email.focus()
		return false
	}
	if (echeck(checkForm.email.value)==false){
		checkForm.email.value=""
		checkForm.email.focus()
		return false
	}
}