// validate weight range after height is entered
/*
function selectHeight(sender, args)
{
	if (document.getElementById("pheightfeet").selectedIndex > 0)
	{
		args.IsValid = true;
	}
	else
	{
		args.IsValid = false;
	}
	
}
*/

function validateWeight(sender, args) 
{
	var weight = document.getElementById(sender.controltovalidate);
	charpos = weight.value.search("[^0-9]"); 
	var cvPrePregWeight = document.getElementById("cvPrePregWeight");
	if (weight.value.length <= 0 )
	{
	    	cvPrePregWeight.errormessage = "Please enter your prepregnancy weight.";
		args.IsValid = false;
	}
	else
	{
		if (  charpos >= 0  )    //non-digit found
		{ 
		   
			cvPrePregWeight.errormessage = "Please enter your prepregnancy weight. Your current entry is not valid.";
			args.IsValid = false;  
			
		}
		else
		{
		
			if (weight.value < 60 || weight.value > 400)    
			{
				         
				cvPrePregWeight.errormessage = "Please enter your weight. Your current weight entry is not in the valid range."
				args.IsValid = false;
			}
			else
			{
				args.IsValid = true;
			}
			            
		}
	}

}




function getValue(varname) {

    var url = window.location.href;
	var qparts = url.split("?");
	if (qparts.length == 0) { return ""; }
	var query = qparts[1];
	var vars = query.split("&");
	var value = "";

	for (i=0;i<vars.length;i++) {
		var parts = vars[i].split("=");
		if (parts[0] == varname) {
			value = parts[1];
			break;
		}
	}
  
	value = unescape(value);
	value.replace(/\+/g," ");
	value = value.replace(/\<script/g," ");
	value = value.replace(/\.js/g," ");
	value = value.replace(/\<\/script\>/g," ");
	return value;

}

function warningForPregnancyBMI2()
{

	WebForm_OnSubmit();
	if (Page_ClientValidate(''))
	{
		var feet=document.getElementById("pheightfeet").value;
		var inch=document.getElementById("pheightinch").value
		var weight=document.getElementById("txtPrePregWeight").value;
		var BMI=BMI2(feet,inch,weight);

		var URLs="pregnancy_weight_popup.html?pheightfeet=" + feet + "&pheightinch=" + inch + "&txtPrePregWeight=" + weight
		var aWin=window.open(URLs,"myNewWin","width=400,height=250,toolbar=0");
		aWin.focus();
	}	
	
}