function chkField(){
	if (document.form1.u_name.value=="") {
  		alert("Error: Missing Username");
			document.form1.u_name.focus();
        return false;
    }
if (document.form1.u_pass.value=="") {
    alert("Error: Missing Password");
	document.form1.u_pass.focus();
        return false;
    }
	if (document.form1.u_pass.value.length <= 4) 
	{
		alert("Error: Password Should be Atleast 5 Character");
		document.form1.u_pass.focus();
        return false;
	}
if (document.form1.c_pass.value=="") {
    alert("Error: Missing Confirm Password");
	document.form1.c_pass.focus();
        return false;
    }
	if (document.form1.u_pass.value!=document.form1.c_pass.value)
	{
		alert("Error: Password are different");
		document.form1.c_pass.focus();
        return false;
	}
	if (document.form1.f_name.value=="") {
        alert("Error: Missing First Name");
	document.form1.f_name.focus();
        return false;
    }
	if (document.form1.l_name.value=="") {
        alert("Error: Missing Last Name");
	document.form1.l_name.focus();
        return false;
    }
	if (document.form1.cust_type.value=="") {
        alert("Error: Select Customer Type");
	document.form1.cust_type.focus();
        return false;
    }
	if (document.form1.c_email.value!="") 
    {
			if(isEMail(document.form1.c_email.value)==false)
			{
 				alert("Error: Enter Valid Email Address");
 				document.form1.c_email.focus();
 				return false;
    		}
			
	}
	else
	{
				alert("Error: Enter Your Email Address");
 				document.form1.c_email.focus();
 				return false;
	}
	if (document.form1.c_phone.value!="") 
    {
			if(isPhoneFax(document.form1.c_phone.value)==false){
 				alert("Error: Enter Valid Phone Number");
 				document.form1.c_phone.focus();
 				return false;
    		}
	}
	else
	{
				alert("Error: Enter Phone Number");
 				document.form1.c_phone.focus();
 				return false;
    }
if (document.form1.c_fax.value!="") 
    {
			if(isPhoneFax(document.form1.c_fax.value)==false)
			{
 				alert("Error: Enter Valid Fax Number");
 				document.form1.c_fax.focus();
 				return false;
    		}
	}
	else
	{
				alert("Error: Enter Fax Number");
 				document.form1.c_fax.focus();
 				return false;
    }
if (document.form1.b_com_name.value=="") 
{
        alert("Error: Enter Your Billing Institution/Company Name");
	document.form1.b_com_name.focus();
        return false;
    }
	if (document.form1.b_street.value=="") 
	{
        alert("Error: Enter Your Billing Street Address");
	document.form1.b_street.focus();
        return false;
    }
	if (document.form1.b_city.value=="") 
	{
        alert("Error: Enter Your Billing City");
	document.form1.b_city.focus();
        return false;
    }
	if (document.form1.b_state.value=="") 
	{
        alert("Error: Select Your Billing State");
	document.form1.b_state.focus();
        return false;
    }
	
	if (document.form1.b_zip.value=="") 
	{
        alert("Error: Enter Your Billing Zip");
		document.form1.b_zip.focus();
        return false;
    }
	if(document.form1.b_zip.value.match(/[~# $%^*()_:;"'|<>?]+/))
		{
		alert("Error: Enter only numeric values!!")
		document.form1.b_zip.value="";
		document.form1.b_zip.focus();
        return false;		
		}
		if (document.form1.b_country.value=="") 
	{
        alert("Error: Enter Your Billing Country");
	document.form1.b_country.focus();
        return false;
    }
	if (document.form1.b_phone.value!="") 
    {
			if(isPhoneFax(document.form1.b_phone.value)==false)
			{
 				alert("Error: Enter Valid Phone Number");
 				document.form1.b_phone.focus();
 				return false;
    		}
	}
	else
	{
				alert("Error: Enter Your Billing Phone Number");
 				document.form1.b_phone.focus();
 				return false;
	}
	if (document.form1.b_fax.value!="") 
    {
			if(isPhoneFax(document.form1.b_fax.value)==false)
			{
 				alert("Error: Enter Valid Fax Number");
 				document.form1.b_fax.focus();
 				return false;
    		}
	}
	else
	{
 				alert("Error: Enter Your Billing Fax Number");
 				document.form1.b_fax.focus();
 				return false;

	}
	
	return true;
   //document.form1.submit()
}