function nocolor()
{
var i,cnt;
cnt=document.forms['zitmail'].elements.length;
for(i=0;i<cnt-1;i++){
document.forms['zitmail'].elements[i].style.backgroundColor="#d4d4d4";
}
}
var rexName=/^[A-Za-z][A-Za-z\s]{1,49}[A-Za-z]$/;
var rexEmail=/^[a-zA-Z0-9_]+@[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]$/;
var rexMessage=/^[a-zA-Z0-9,.\s-/]{30,500}$/;
function vf(){
	nocolor();
	if(document.forms['zitmail'].elements['Sender_Name'].value.search(rexName)==-1){
		document.getElementById("Sender_Name").style.backgroundColor="#ff0000";
		document.forms['zitmail'].elements['Sender_Name'].focus();
				alert('Please type your full name i.e; Malik Zia Hussain');
				document.zinp=false;
	}
	else if(document.forms['zitmail'].elements['Sender_Email'].value.search(rexEmail)==-1){
               document.getElementById("Sender_Email").style.backgroundColor="#ff0000";
				document.forms['zitmail'].elements['Sender_Email'].focus();
				alert('Please type your valid E-mail Address');
				document.zinp=false;
	}
	else if(document.forms['zitmail'].elements['Sender_Details'].value.search(rexMessage)==-1){
               document.getElementById("Sender_Details").style.backgroundColor="#ff0000";
				document.forms['zitmail'].elements['Sender_Details'].focus();
				alert('Please briefly describe your message ( 30 Min to 500 Max charachters)');
				document.zinp=false;
	}
	else{
				document.zinp=true;
	}	
}