function Trim(str){
  while(str.charAt(0) == (" ") ) {  str = str.substring(1);  }
  while(str.charAt(str.length-1) == " " )   {  str = str.substring(0,str.length-1);   }
  return str;
}

function validEmail( strValue) {
	var objRegExp = /^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i 
	return objRegExp.test(strValue);
}

//Seller 
function validCustomer(frm) {
	
	if(!Trim(frm.cname.value)) {
		alert("Please Enter your Name");
		frm.cname.focus();	
		return false;
	}
	if(!Trim(frm.cemail.value)) {
		alert("Please Enter the Email Address");
		frm.cemail.focus();	
		return false;
	}
	if(!validEmail(frm.cemail.value)) {
		alert("Please Enter the Valid Email Address");
		frm.cemail.focus();	
		return false;
	}
	
	if(isNaN(frm.cphone1.value) || isNaN(frm.cphone2.value) || isNaN(frm.cphone3.value)) {
		alert("Please Enter Valid Phone Number");
		frm.cphone1.select();	
		frm.cphone1.focus();	
		return false;
	}
	
}

//Seller 
function validContact(frm) {
	
	if(!Trim(frm.cname.value)) {
		alert("Please Enter your Name");
		frm.cname.focus();	
		return false;
	}
	if(!Trim(frm.cemail.value)) {
		alert("Please Enter the Email Address");
		frm.cemail.focus();	
		return false;
	}
	if(!validEmail(frm.cemail.value)) {
		alert("Please Enter the Valid Email Address");
		frm.cemail.focus();	
		return false;
	}
	
	if(isNaN(frm.cphone1.value) || isNaN(frm.cphone2.value) || isNaN(frm.cphone3.value)) {
		alert("Please Enter Valid Phone Number");
		frm.cphone1.focus();	
		return false;
	}
	
}