// JavaScript Document
function MM_findObj(n, d) { //v4.01
var p,i,x; if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
if(!x && d.getElementById) x=d.getElementById(n); return x;
}
function isValidDate(dateStr) {
// Checks for the following valid date formats:
// MM/DD/YY   MM/DD/YYYY   MM-DD-YY   MM-DD-YYYY
var datePat = /^(\d{1,2})(\-|\/|\.)(\d{1,2})\2(\d{2}|\d{4})$/;
var matchArray = dateStr.match(datePat); // is the format ok?
if (matchArray == null) {
//alert("Date is not in a valid format.")
return false;
}
month = matchArray[3]; // parse date into variables
day = matchArray[1];
year = matchArray[4];
if (month < 1 || month > 12) { // check month range
//alert("Month must be between 1 and 12.");
return false;
}
if (day < 1 || day > 31) {
//alert("Day must be between 1 and 31.");
return false;
}
if ((month==4 || month==6 || month==9 || month==11) && day==31) {
//alert("Month "+month+" doesn't have 31 days!")
return false
}
if (month == 2) { // check for february 29th
var isleap = (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0));
if (day>29 || (day==29 && !isleap)) {
//alert("February " + year + " doesn't have " + day + " days!");
return false;
   }
}
return true;  // date is valid
}
function MM_validateForm()
//  function syntax: MM_validateForm('Field1_Name','Message1','ValidType1','Field2_Name','Message2,'ValidType2',....)
//  FieldName ... Name of field in HTML source
//  Message   ... Name of field for error displaying
//  ValidType ... T - text field
//                isEmail - e-mail field
//	   isDate - date field
//                empty - number field
//                inRange 1:9 - number range field (min:max)
{
var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
for (i=0; i<(args.length-2); i+=3) 
{ 
test=args[i+2];
val=MM_findObj(args[i]);
vlen=val.length;
if (val) 
{ 
	nm=args[i+1];
	ckv=val.value;	
	if (vlen>0)
	{
		if (val.type == "select-one")
		{
			if (val.selectedIndex == 0) errors+='- '+nm+' - some value must be selected.\n';
		}
		else
		{
			if (val.type == "select-multiple")
			{
				if (val.selectedIndex == -1) errors+='- '+nm+' - some value must be selected.\n';
			}
			else
			{
				check='';
				for(var k=0;k<vlen;k++) check|=val[k].checked;
				if (!check) errors+='- '+nm+' - some value must be selected.\n';
			}
		}
	}	
	else 
	{
		if (ckv!="") 
		{
			if (test.indexOf('isEmail')!=-1) 
			{
				p=ckv.indexOf('@');
        				if (p<1 || p==(ckv.length-1)) errors+='- '+nm+' - e-mail required.\n';
 			} 
			else
			{
				if (test.indexOf('isDate')!=-1)
				{
					if (!isValidDate(ckv)) errors+='- '+nm+' - date is incorrect.\n';
				}
				else
				{
					if (test=='') 
					{
						num = parseFloat(ckv);
						if (ckv!=''+num) errors+='- '+nm+' - number required.\n';
						if (test.indexOf('inRange') != -1) 
						{ 
							p=test.indexOf(':');
							min=test.substring(8,p);
							max=test.substring(p+1);
							if (num<min || max<num)	errors+='- '+nm+' - insert a number from a range '+min+' - '+max+'.\n';
    						}
					} 
				}
			} 
		}
      		else
		{
			errors += '- '+nm+' - must be filled in.\n';
		}
	}
}
} //for
if (errors) alert('Incorrect values:\n'+errors);
document.MM_returnValue = (errors == '');
}
function ValThreeTextBox(var1, var2, var3)
{
	var errors='';
	err=document.MM_returnValue;
	if (err)
	{
		val1=MM_findObj(var1);
		vval1=val1.value;
		val2=MM_findObj(var2);
		vval2=val2.value;
		val3=MM_findObj(var3);
		vval3=val3.value;
		checkboth = '';		
		if ((vval1=="") && (vval2=="") && (vval3=="")) errors+='- ' + 'Material Number, Catalog Number or Material Description must be filled in.\n';
		if (errors) alert('Incorrect values:\n'+errors);
		document.MM_returnValue = (errors == '');
	}
}
function CompareValues(var1, var2)
{
	var errors='';
	err=document.MM_returnValue;
	if (err)
	{	
		val1=MM_findObj(var1);
		vval1=val1.value;
		val2=MM_findObj(var2);
		vval2=val2.value;
		if (vval1!=vval2) errors+='- ' + 'Password and Confirmed password must be the same.\n';
		if (errors) alert('Incorrect values:\n'+errors);
		document.MM_returnValue = (errors == '');
	}
}