function VMaxOver(link,id,overIm) {
  if(document.images) {
    im            = document.images[id];
    im.outIm      = new Image();
    im.overIm     = new Image();
    im.outIm.src  = document.images[id].src;
    im.overIm.src = overIm;
    im.src        =im.overIm.src;
    link.onmouseout  = new Function("var im=document."+id+"; im.src=im.outIm.src;");
    link.onmouseover = new Function("var im=document."+id+"; im.src=im.overIm.src;");
  }
}



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 Address")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Invalid E-mail Address")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Invalid E-mail Address")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Invalid E-mail Address")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Invalid E-mail Address")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Invalid E-mail Address")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Invalid E-mail Address")
		    return false
		 }

 		 return true					
	}


function IsNumeric(strString)
   //  check for valid numeric strings	
   {
   var strValidChars = "0123456789.-";
   var strChar;
   var blnResult = true;

   if (strString.length == 0) return false;

   //  test strString consists of valid characters listed above
   for (i = 0; i < strString.length && blnResult == true; i++)
      {
      strChar = strString.charAt(i);
      if (strValidChars.indexOf(strChar) == -1)
         {
         blnResult = false;
         }
      }
   return blnResult;
   }



function checkContact(){

   var ValidChars = "0123456789";

	var emailID=document.contactForm.Email

	if (document.contactForm.First_Name.value == "" ) {
		alert("Please add a First Name");
		document.contactForm.First_Name.focus();
		return false;
	}


	if (document.contactForm.Last_Name.value == "" ) {
		alert("Please add a Last Name");
		document.contactForm.Last_Name.focus();
		return false;
	}


	if ((emailID.value==null)||(emailID.value=="")){
		alert("Please Enter your Email Address")
		emailID.focus()
		return false;
	}
	if (echeck(emailID.value)==false){
		emailID.value=""
		emailID.focus()
		return false;
	}


   	if (document.contactForm.Phone.value == 0) {
      		alert("Please enter a telephone number.");
      		document.contactForm.Phone.focus();
      		return false;
      	} else if (IsNumeric(document.contactForm.Phone.value) == false) {
      		alert("Please enter a correct telephone number\nNumbers Only!");
      		document.contactForm.Phone.value=="";      		
      		document.contactForm.Phone.focus();
      		return false;
      	}


	if (document.contactForm.Comments.value == "" ) {
		alert("Please add your comment");
		document.contactForm.Comments.focus();
		return false;
	}


		return true;


}