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("Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Invalid E-mail ID")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Invalid E-mail ID")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Invalid E-mail ID")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Invalid E-mail ID")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Invalid E-mail ID")
		    return false
		 }

 		 return true					
	}

function leftcheck(){
	var fname=document.leftmail.first_name;
	var lname=document.leftmail.last_name;
	var emailID=document.leftmail.email;
	var textareainput=document.leftmail.description;

	if ((fname.value==null)||(fname.value=="")){
		alert("Please Enter Your First Name")
		fname.focus()
		return false
	}
	
	if ((lname.value==null)||(lname.value=="")){
		alert("Please Enter Your Last Name")
		lname.focus()
		return false
	}
	
	if ((emailID.value==null)||(emailID.value=="")){
		alert("Please Enter your Email ID")
		emailID.focus()
		return false
	}
	
	if (echeck(emailID.value)==false){
		emailID.value=""
		emailID.focus()
		return false
	}
        
	if ((textareainput.value==null)||(textareainput.value=="")){
		alert("Please Enter Your Project Description")
		
		textareainput.focus()
		return false
	}
	
return true;}

function focusIt()
{
document.leftmail.first_name.focus()
}