function enquiry_form() 
{ 
	var frm = document.enquiry;
	  var comments = document.getElementById('cus_comments').value;
	if(frm.cus_name.value=="") 
	{
		alert("Please Enter Name.");
		frm.cus_name.focus();	
		return false;
	}
	

		else if(frm.cus_email.value=="") 
	{
		alert("Please Enter Email Address.");
		frm.cus_email.focus();	
		return false;
	}
	
	else if(!(frm.cus_email.value.indexOf('@')>0 && frm.cus_email.value.indexOf('.')>2) ) 
	{
		alert("Please Enter Valid Email Address.");
		frm.cus_email.focus();	
		return false;
	}
	
	
	if(frm.jtitle.value=="") 
	{
		alert("Please Enter Job Title.");
		frm.jtitle.focus();	
		return false;
	}
	
	
	 else if(trim(comments) == '') {
		 alert("Please enter Your Details.");
		 frm.enquiry.focus();	
		 return false;
		 
	  }
	
}


function trim(str, chars) {
	return ltrim(rtrim(str, chars), chars);
}
 
function ltrim(str, chars) {
	chars = chars || "\\s";
	return str.replace(new RegExp("^[" + chars + "]+", "g"), "");
}
 
function rtrim(str, chars) {
	chars = chars || "\\s";
	return str.replace(new RegExp("[" + chars + "]+$", "g"), "");
}