function formValidate() 
{ 
	var frm = document.orderByEmail;
	  var delivery_address = document.getElementById('delivery_address').value;
	        var x = document.orderByEmail.phone.value;
	if(frm.qty.value=="") 
	{
		alert("Please Enter Quantity.");
		frm.qty.focus();	
		return false;
	}
	
	if(isNaN(frm.qty.value)||frm.qty.value.indexOf(" ")!=-1)
        {
            alert("Enter Quantity in Numbers Only")
             return false;
        }
	
	if(frm.pcode.value=="") 
	{
		alert("Please Enter Product Code/Name.");
		frm.pcode.focus();	
		return false;
	}

	if(frm.cname.value=="") 
	{
		alert("Please Enter Contact Name.");
		frm.cname.focus();	
		return false;
	}
	
	if(trim(delivery_address) == '') {
		 alert("Please enter Your Delivery Address.");
		 frm.delivery_address.focus();	
		 return false;
		 
	  }
	  
	 if(isNaN(frm.phone.value)||frm.phone.value=="")
        {
            alert("Enter Correct Phone Number");
			frm.phone.focus();	
             return false;
        }
      if (frm.phone.value.length>12 || frm.phone.value.length<3)
       {
            alert("Please Enter Correct Number");
            return false;
       }

if(frm.email.value=="") 
	{
		alert("Please Enter Email Address.");
		frm.email.focus();	
		return false;
	}
	
	else if(!(frm.email.value.indexOf('@')>0 && frm.email.value.indexOf('.')>2) ) 
	{
		alert("Please Enter Valid Email Address.");
		frm.email.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"), "");
}