function FP_preloadImgs() {
 var d=document,a=arguments; if(!d.FP_imgs) d.FP_imgs=new Array();
 for(var i=0; i<a.length; i++) { d.FP_imgs[i]=new Image; d.FP_imgs[i].src=a[i]; }
}

function FP_swapImg() {
 var doc=document,args=arguments,elm,n; doc.$imgSwaps=new Array(); for(n=2; n<args.length;
 n+=2) { elm=FP_getObjectByID(args[n]); if(elm) { doc.$imgSwaps[doc.$imgSwaps.length]=elm;
 elm.$src=elm.src; elm.src=args[n+1]; } }
}

function FP_getObjectByID(id,o) {
 var c,el,els,f,m,n; if(!o)o=document; if(o.getElementById) el=o.getElementById(id);
 else if(o.layers) c=o.layers; else if(o.all) el=o.all[id]; if(el) return el;
 if(o.id==id || o.name==id) return o; if(o.childNodes) c=o.childNodes; if(c)
 for(n=0; n<c.length; n++) { el=FP_getObjectByID(id,c[n]); if(el) return el; }
 f=o.forms; if(f) for(n=0; n<f.length; n++) { els=f[n].elements;
 for(m=0; m<els.length; m++){ el=FP_getObjectByID(id,els[n]); if(el) return el; } }
 return null;
}

function FP_swapImgRestore() {
 var doc=document,i; if(doc.$imgSwaps) { for(i=0;i<doc.$imgSwaps.length;i++) {
  var elm=doc.$imgSwaps[i]; if(elm) { elm.src=elm.$src; elm.$src=null; } } 
  doc.$imgSwaps=null; }
}

function MyCheckEnteredValue(element) {
	var lField = ltrim(rtrim(String(element.value)));
    myReg=new RegExp("^[$]?[0-9]*\\.?[0-9]*$"); 
	if (!(myReg.test(lField) && lField!='.' && lField!='$')) {
		alert("Only numeric values are allowed!");
		element.focus();
		element.select();
		return false;
	}
	return true;
}

function MyCheckEnteredValuePercent(element) {
	var lField = ltrim(rtrim(String(element.value)));
    myReg=new RegExp("^[0-9]*\\.?[0-9]*?$"); 
	if (!(myReg.test(lField) && lField!='.' )) {
		alert("Only numeric values are allowed ");
		return false;
	}

	
	if (parseFloat(lField)>100) {
		alert("Percentage values must be between 0 and 100!")
		return false;
	}
	return true;
}

function rtrim(argvalue) {
  while (1) {
    if (argvalue.substring(argvalue.length - 1, argvalue.length) != " ")
      break;
    argvalue = argvalue.substring(0, argvalue.length - 1);
  }
  return argvalue;
}

function ltrim(argvalue) {
  while (1) {
    if (argvalue.substring(0, 1) != " ")
      break;
    argvalue = argvalue.substring(1, argvalue.length);
  }
    return argvalue;
}

function round(number)
{
  return Math.round(number*Math.pow(10,2))/Math.pow(10,2);
}



function dosum()
{   frm = document.temps;
	var mi = frm.IR.value / 1200;  
	var counter = 1;  
	var mcounter = 1 + mi;  
	for (i=0; i<frm.YR.value * 12; i++)  
	{   
		counter = counter * mcounter  
	}  
	frm.PI.value = round(frm.LA.value * mi / ( 1 - (1/counter)))  
	frm.MT.value = round(frm.AT.value / 12)  
	frm.MI.value = round(frm.AI.value / 12)  
	var dasum = frm.LA.value * mi / ( 1 - (1/counter)) + frm.AT.value / 12 + frm.AI.value / 12;
    frm.MP.value = round(dasum);
}