function validateForm(oForm)
 {
  //oForm refers to the form which you want to validate
  oForm.onsubmit = function() // attach the function to onsubmit event
  {
   oForm.elements['contact_name'].value = oForm.elements['contact_name'].value.replace(/^(www.){1}(.+)/, "$2");
   
   oForm.elements['contact_name'].value = oForm.elements['contact_name'].value.replace(/^([a-zA-Z0-9_\.\-]+)\@(ol|al|ao|aaol|aool|aoll|oal|alo|a9l|a0l|qaol|aqol|waol|awol|saol|asol|xaol|axol|zaol|azol|aiol|aoil|a9ol|ao9l|a0ol|ao0l|apol|aopl|alol|aoll|akol|aokl|aokl|aolk|aool|aolo|aopl|aolp){1}([\.]{1})(.+)$/, "$1@aol$3$4");
   oForm.elements['contact_name'].value = oForm.elements['contact_name'].value.replace(/^([a-zA-Z0-9_\.\-]+)\@(otmail|htmail|homail|hotail|hotmil|hotmal|hotmai|hhotmail|hootmail|hottmail|hotmmail|hotmaail|hotmaiil|hotmaill|ohtmail|htomail|homtail|hotamil|hotmial|hotmali|gotmail|yotmail|uotmail|jotmail|notmail|botmail|hitmail|h9tmail|h0tmail|hptmail|hltmail|hktmail|hormail|ho5mail|ho6mail|hoymail|hohmail|hogmail|hofmail|hotnail|hotjail|hotkail|hotmqil|hotmwil|hotmsil|hotmxil|hotmzil|hotmaul|hotma8l|hotma9l|hotmaol|hotmall|hotmakl|hotmajl|hotmaik|hotmaio|hotmaip|ghotmail|hgotmail|yhotmail|hyotmail|uhotmail|huotmail|jhotmail|hjotmail|nhotmail|hnotmail|bhotmail|hbotmail|hiotmail|hoitmail|h9otmail|ho9tmail|h0otmail|ho0tmail|hpotmail|hoptmail|hlotmail|holtmail|hkotmail|hoktmail|hortmail|hotrmail|ho5tmail|hot5mail|ho6tmail|hot6mail|hoytmail|hotymail|hohtmail|hothmail|hogtmail|hotgmail|hoftmail|hotfmail|hotnmail|hotmnail|hotjmail|hotmjail|hotkmail|hotmkail|hotmqail|hotmaqil|hotmwail|hotmawil|hotmsail|hotmasil|hotmxail|hotmaxil|hotmzail|hotmazil|hotmauil|hotmaiul|hotma8il|hotmai8l|hotma9il|hotmai9l|hotmaoil|hotmaiol|hotmalil|hotmaill|hotmakil|hotmaikl|hotmajil|hotmaijl|hotmaikl|hotmailk|hotmaiol|hotmailo|hotmaipl|hotmailp){1}([\.]{1})(.+)$/, "$1@hotmail$3$4");
   oForm.elements['contact_name'].value = oForm.elements['contact_name'].value.replace(/^([a-zA-Z0-9_\.\-]+)\@(mail|gail|gmil|gmal|gmai|ggmail|gmmail|gmaail|gmaiil|gmaill|mgail|gamil|gmial|gmali|fmail|tmail|ymail|hmail|bmail|vmail|gnail|gjail|gkail|gmqil|gmwil|gmsil|gmxil|gmzil|gmaul|gma8l|gma9l|gmaol|gmall|gmakl|gmajl|gmaik|gmaio|gmaip|fgmail|gfmail|tgmail|gtmail|ygmail|gymail|hgmail|ghmail|bgmail|gbmail|vgmail|gvmail|gnmail|gmnail|gjmail|gmjail|gkmail|gmkail|gmqail|gmaqil|gmwail|gmawil|gmsail|gmasil|gmxail|gmaxil|gmzail|gmazil|gmauil|gmaiul|gma8il|gmai8l|gma9il|gmai9l|gmaoil|gmaiol|gmalil|gmaill|gmakil|gmaikl|gmajil|gmaijl|gmaikl|gmailk|gmaiol|gmailo|gmaipl|gmailp){1}([\.]{1})(.+)$/, "$1@gmail$3$4");
   oForm.elements['contact_name'].value = oForm.elements['contact_name'].value.replace(/^([a-zA-Z0-9_\.\-]+)\@(ahoo|yhoo|yaoo|yaho|yaho|yyahoo|yaahoo|yahhoo|yahooo|yahooo|ayhoo|yhaoo|yaoho|tahoo|6ahoo|7ahoo|uahoo|jahoo|hahoo|gahoo|yqhoo|ywhoo|yshoo|yxhoo|yzhoo|yagoo|yayoo|yauoo|yajoo|yanoo|yaboo|yahio|yah9o|yah0o|yahpo|yahlo|yahko|yahoi|yaho9|yaho0|yahop|yahol|yahok|tyahoo|ytahoo|6yahoo|y6ahoo|7yahoo|y7ahoo|uyahoo|yuahoo|jyahoo|yjahoo|hyahoo|yhahoo|gyahoo|ygahoo|yqahoo|yaqhoo|ywahoo|yawhoo|ysahoo|yashoo|yxahoo|yaxhoo|yzahoo|yazhoo|yaghoo|yahgoo|yayhoo|yahyoo|yauhoo|yahuoo|yajhoo|yahjoo|yanhoo|yahnoo|yabhoo|yahboo|yahioo|yahoio|yah9oo|yaho9o|yah0oo|yaho0o|yahpoo|yahopo|yahloo|yaholo|yahkoo|yahoko|yahoio|yahooi|yaho9o|yahoo9|yaho0o|yahoo0|yahopo|yahoop|yaholo|yahool|yahoko|yahook){1}([\.]{1})(.+)$/, "$1@yahoo$3$4");
    
   oForm.elements['contact_name'].value = oForm.elements['contact_name'].value.replace(/^([a-zA-Z0-9_\.\-]+)\@([a-zA-Z0-9\-]+)(.co|.cm|.om){1}$/, "$1@$2.com");
   oForm.elements['contact_name'].value = oForm.elements['contact_name'].value.replace(/^([a-zA-Z0-9_\.\-]+)\@([a-zA-Z0-9\-]+)(.ne|.et|.nt){1}$/, "$1@$2.net");
   oForm.elements['contact_name'].value = oForm.elements['contact_name'].value.replace(/^([a-zA-Z0-9_\.\-]+)\@([a-zA-Z0-9\-]+)(.c.in|.co.im|.o.in|.co.i|.co.n){1}$/, "$1@$2.co.in");
   oForm.elements['contact_name'].value = oForm.elements['contact_name'].value.replace(/^([a-zA-Z0-9_\.\-]+)\@([a-zA-Z0-9\-]+)(.or|.og|.rg){1}$/, "$1@$2.org");

   var regex = /^([a-zA-Z0-9_\.\-]+)\@([a-zA-Z0-9\-]+)((\.([a-zA-Z0-9]{2,4}))+)$/;
   
   if(oForm.elements['contact_name'].value.length<1)
   {
    alert("You cannot leave the email field empty");
    return false;
   }
   else if(!regex.test(oForm.elements['contact_name'].value))
   {
    alert("Your email has a mistake.  Please correct it.");
    return false;
   }

 		if (oForm.elements['contact_name'].value.search(/.gov/) != -1 || oForm.elements['contact_name'].value.search(/.mil/) != -1 || oForm.elements['contact_name'].value.search(/finra.org/) != -1 || oForm.elements['contact_name'].value.search(/spam/) != -1)
 		{
 			window.location = "http://www.pennystockpicks.net/thankyou.html";
 			return false;
		}
		
 		return true;
 	}
 }