function validateForm(contact)
{

if(document.forms.contact.name.value=="")
{
//alert("Please enter your name!");
document.getElementById('nmsg').style.display="block";
return false;
}
else
{
	document.getElementById('nmsg').style.display="none";

	}
var email=document.forms.contact.emailadd
if (echeck(email.value)==false){
		
		email.focus()
		return false
	}
	else
{
	document.getElementById('em').style.display="none";

	}

if(document.forms.contact.desc.value=="")
{
document.getElementById('req').style.display="block";
return false;
}
else
{
	document.getElementById('req').style.display="none";
}

if(document.forms.contact.comment.value=="")
{
document.getElementById('com').style.display="block";
return false;
}
else
{
	document.getElementById('com').style.display="none";
}

if(document.forms.contact.uploaded.value=="")
{
document.getElementById('upl').style.display="block";
return false;
}
else
{
	document.getElementById('upl').style.display="none";
}
	
var ph=document.forms.contact.phone
if (isInteger(ph.value)==false){
	//alert("Please provide a valid phone number")
	document.getElementById('ph').style.display="block";
		return false;
	}
else
{
	document.getElementById('ph').style.display="none";
	}
}
	

	


function isInteger(s){
 var i;
    for (i = 0; i < s.length; i++){  
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

// Email validation //
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("Please provide a valid email address!")
		   document.getElementById('em').style.display="block";
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   //alert("Please provide a valid email address!")
		     document.getElementById('em').style.display="block";
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    //alert("Please provide a valid email address!")
			  document.getElementById('em').style.display="block";
			  
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		   // alert("Please provide a valid email address!")
		     document.getElementById('em').style.display="block";
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    //alert("Please provide a valid email address!")
			  document.getElementById('em').style.display="block";
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		   // alert("Please provide a valid email address!")
		     document.getElementById('em').style.display="block";
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    //alert("Please provide a valid email address!")
			  document.getElementById('em').style.display="block";
		    return false
		 }

 		 return true					
	}