function checkemail(e1)
{

 var str=document.getElementById(e1).value;
  
 var filter=/^.+@.+\..{2,3}$/
 
var rs=filter.test(str);

//check email id
 if (filter.test(str))
 {
   testresults=true
 }
 else {
    alert("Please make sure your Email ID is entered in this format(e.g. name@company.com)")
    testresults=false
}
 return (testresults)
}

function validateurl(e1)
{

 var str=document.getElementById(e1).value;
 var f_val=document.getElementById(e1).value;
      if(str=="")
    {
   alert("Enter a valid URL(e.g. http://www.classontheweb.com).")
    document.getElementById(e1).focus();
    return false;
    } 
    else
    {
      var filter = /(http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/
var rs=filter.test(str);

//check email id
 if (filter.test(str))
 {
   testresults=true
 }
 else 
 {
    alert("Enter a valid URL(e.g. http://www.classontheweb.com).")
    testresults=false
}
 return (testresults)
    }
 

}

function validatefileupload(e1)
{
debugger;
   var f_val=document.getElementById(e1).value;
      if(f_val=="")
    {
    alert("Please upload only .gif or .jpg or .swf extention file.");
    document.getElementById(e1).focus();
    return false;
    } 
    if((document.getElementById(e1).value.lastIndexOf(".gif")==-1) && (document.getElementById(e1).value.lastIndexOf(".GIF")==-1)&& (document.getElementById(e1).value.lastIndexOf(".JPG")==-1) && (document.getElementById(e1).value.lastIndexOf(".jpg")==-1) && (document.getElementById(e1).value.lastIndexOf(".swf")==-1) && (document.getElementById(e1).value.lastIndexOf(".SWF")==-1))
     {
   alert("Please upload only .gif or .jpg or .swf extention file");
   document.getElementById(e1).focus();
   return false;
      }
   

}