function checkForm(frm)
    {
    var focus1,focus2,focus3,focus4;
	var error=false;
	var str="";	
	 if(frm.website_name.value.length==0)
	 {
	   str=str+"Please Enter Website Name. \n";
		error=true;
		focus1=1;
	 }
	 if(frm.website_url.value.length==0)
	 {
	   str=str+"Please Enter Website Address(URL).\n";
		error=true;
		focus2=2;
	 }
     if(frm.website_url.value.length!=0)
        {
		 
		 //var lst=frm.website_url.value.length;
         //var dot="."
          // if (frm.website_url.value.indexOf (dot) == -1 || frm.website_url.value.indexOf(dot) == 0 || frm.website_url.value.indexOf(dot) == lst )
                if(frm.website_url.value=='http://')
				{  
                str=str+"Enter a Valid URL.\n";
				 error=true; 
				 focus2=2;                 
             }
		}
      if(frm.name.value.length==0)
	  {
	   str=str+"Please Enter Your Name. \n";
	 	error=true;
		focus3=3;
	  }	 
	 if(frm.email.value.length==0)
	    {
		 str=str+"Please Enter Your Email Address. \n";
		error=true;
		focus4=4;
	    }
    if(frm.email.value.length!=0)
		{
	var eres=echeck(frm.email.value);
	if (eres!=true){
		str=str+eres+"\n";
		error=true;
		focus4=4;
	 }
	}
	if(error==true)
	   {
	  alert(str);
	  if(focus1==1)
			frm.website_name.focus();
		else if(focus2==2)
			frm.website_url.focus();
		else if(focus3==3)
			frm.name.focus();
		else if(focus4==4)
			frm.email.focus();
		
	  return false;
	  }
	  else
	  {
	  return true;
	  }
	}
  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){
		    return "Invalid Email Address";
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   return "Invalid Email Address";
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    return "Invalid Email Address";
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    return "Invalid Email Address";
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    return "Invalid Email Address";
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		   return "Invalid Email Address";
		 }
		
		 if (str.indexOf(" ")!=-1){
		    return "Invalid Email Address";
		 }
 		 return true			 
	  }