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 ValidateForm_article(){

var authorID=document.submit_article_form.author
var author_detailsID=document.submit_article_form.author_details


	var titleID=document.submit_article_form.title
	var short_descID=document.submit_article_form.short_desc
	var articleID=document.submit_article_form.article
	var urlID=document.submit_article_form.url
	var emailID=document.submit_article_form.email



if ((authorID.value==null)||(authorID.value=="")){
		alert("Please Enter your author")
		
		return false
	}



if ((author_detailsID.value==null)||(author_detailsID.value=="")){
		alert("Please Enter your author details")
		
		return false
	}


		if ((titleID.value==null)||(titleID.value=="")){
		alert("Please Enter your Title")
		
		return false
	}

if ((short_descID.value==null)||(short_descID.value=="")){
		alert("Please Enter your short desc")
		
		return false
	}


		if ((articleID.value==null)||(articleID.value=="")){
		alert("Please Enter your article")
		
		return false
	}


		if ((urlID.value==null)||(urlID.value=="")){
		alert("Please Enter your url")
		
		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
	}
	return true
 }