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 fnsubmit()
{
	var title=document.c2Form.txtTitle
	var story=document.c2Form.txtStory
    var guidelines=document.c2Form.chk_submission_guidelines
	var captcha=document.c2Form.security_code
	var emailID=document.c2Form.email

	if ((title.value==null)||(title.value=="")){
		alert("Please enter Title of the book");
		title.focus()
		return false
	}
	
	if ((story.value==null)||(story.value=="")){
		alert("Please enter your recommendation")
		story.focus()
		return false
	}
	if (echeck(emailID.value)==false){
		emailID.value=""
		emailID.focus()
		return false
	}
	if(document.c2Form.fileimage.value!='')
	{
		str=document.c2Form.fileimage.value;
		arr = str.split(".");
		if(str!='')
		{
			if((str.lastIndexOf(".jpg")==-1 && str.lastIndexOf(".gif")==-1 && str.lastIndexOf(".jpeg")==-1 && str.lastIndexOf(".pjpeg")==-1 && str.lastIndexOf(".JPG")==-1 && str.lastIndexOf(".GIF")==-1 && str.lastIndexOf(".JPEG")==-1 && str.lastIndexOf(".PJPEG")==-1))
			{
				alert("Please upload only .jpg,.jpeg,.gif extention file");
				document.c2Form.fileimage.focus();
				return false;
			}
		}
	}
	if (!guidelines.checked){
		alert("Please check submission guidelines")
		guidelines.focus()
		return false
	}
	if ((captcha.value==null)||(captcha.value=="")){
		alert("Please enter the word which you seen in captcha image")
		captcha.focus()
		return false
	}
	else
	{
		document.c2Form.page_action.value='add';
		document.c2Form.action="book_uploads.php";
		document.c2Form.submit();
	}      			
	return true
}