function AddToBookmarks(url,title)
{
	window.external.AddFavorite(url,title);
}

function validate_fields(obj, validation_type, chars, minval, maxval, alert_text)
{
	//alert(obj.value + validation_type + chars + maxval + maxval + alert_text);
	if (validation_type=="email")
	{
		var splitted = obj.value.match("^(.+)@(.+)$");
		if(splitted == null) return false;
		if(splitted[1] != null )
		{
			var regexp_user=/^\"?[\w-_\.]*\"?$/;
			if(splitted[1].match(regexp_user) == null) return false;
		}
		if(splitted[2] != null)
		{
			var regexp_domain=/^[\w-\.]*\.[A-Za-z]{2,4}$/;
			if(splitted[2].match(regexp_domain) == null) 
			{
				var regexp_ip =/^\[\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\]$/;
				if(splitted[2].match(regexp_ip) == null) return false;
			}
			return true;
		}
		return false;
	}

	if (validation_type=="num")
	{
		if (eval(obj.value.length) == 0)
		{
			if (!alert_text=="")
			{
				alert(alert_text);
				obj.focus();
			}
			return false;
		}
		var charpos = obj.value.search("[^0-9]");
		if (obj.value.length > 0 &&  charpos >= 0)
		{
			if (!alert_text=="")
			{
				alert(alert_text + "[Enter the numeric value only.]");
				obj.focus();
			}
			return false;
		}
		if ((maxval>0) && (minval>0))
		{
			if ((obj.value<minval) || (obj.value>maxval))
			{
				if (!alert_text=="")
				{
					alert(alert_text + "[ Value must be between " + minval + " and " + maxval + " ]");
					obj.focus();
				}
				return false;
			}
		}
		if ((minval>0) && (maxval==0))
		{
			if (obj.value<minval)
			{
				if (!alert_text=="")
				{
					alert(alert_text + "[ Minimun value must be less than " + minval + " ]");
					obj.focus();
				}
				return false;
			}
		}
		if ((maxval>0) && (minval==0))
		{
			if (obj.value>maxval)
			{
				if (!alert_text=="")
				{
					alert(alert_text + "[ Maximun value must not exceeds " + maxval + " ]");
					obj.focus();
				}
				return false;
			}
		}
	}

	if (validation_type=="text")
	{
		if (eval(obj.value.length) == 0)
		{
			if (!alert_text=="")
			{
				alert(alert_text);
				obj.focus();
			}
			return false;
		}
		if (!chars=="")
		{
			var charpos = obj.value.search(chars);
			if (obj.value.length > 0 &&  charpos >= 0)
			{
				if (!alert_text=="")
				{
					alert(alert_text);
					obj.focus();
				}
				return false;
			}
		}
	}

	return true;
}




















function Validator(frmname)
{
	this.formobj=document.forms[frmname];
	if(!this.formobj)
	{
		alert("BUG: couldnot get Form object "+frmname);
		return;
	}
	if(this.formobj.onsubmit)
	{
		this.formobj.old_onsubmit = this.formobj.onsubmit;
		this.formobj.onsubmit=null;
	}
	else
	{
		this.formobj.old_onsubmit = null;
	}
	this.formobj.onsubmit=form_submit_handler;
	this.addValidation = add_validation;
	this.setAddnlValidationFunction=set_addnl_vfunction;
	this.clearAllValidations = clear_all_validations;
}

function set_addnl_vfunction(functionname)
{
	this.formobj.addnlvalidation = functionname;
}

function clear_all_validations()
{
	for(var itr=0;itr < this.formobj.elements.length;itr++)
	{
		this.formobj.elements[itr].validationset = null;
	}
}

function form_submit_handler()
{
	for(var itr=0;itr < this.elements.length;itr++)
	{
		if (this.elements[itr].validationset && !this.elements[itr].validationset.validate())
		{
			return false;
		}
	}
	if(this.addnlvalidation)
	{
		str =" var ret = "+this.addnlvalidation+"()";
		Eval(str);
		if(!ret) return ret;
	}
	return true;
}

function add_validation(itemname,descriptor,errstr)
{
	if(!this.formobj)
	{
		alert("BUG: the form object is not set properly");
		return;
	}
	var itemobj = this.formobj[itemname];
	if(!itemobj)
	{
		alert("BUG: Couldnot get the input object named: "+itemname);
		return;
	}
	if(!itemobj.validationset)
	{
		itemobj.validationset = new ValidationSet(itemobj);
	}
	itemobj.validationset.add(descriptor,errstr);
}

function ValidationDesc(inputitem,desc,error)
{
	this.desc=desc;
	this.error=error;
	this.itemobj = inputitem;
	this.validate=vdesc_validate;
}

function vdesc_validate()
{
	if(!V2validateData(this.desc,this.itemobj,this.error))
	{
		this.itemobj.focus();
		return false;
	}
	return true;
}

function ValidationSet(inputitem)
{
	this.vSet=new Array();
	this.add= add_validationdesc;
	this.validate= vset_validate;
	this.itemobj = inputitem;
}

function add_validationdesc(desc,error)
{
	this.vSet[this.vSet.length]= 
	new ValidationDesc(this.itemobj,desc,error);
}

function vset_validate()
{
	for(var itr=0;itr<this.vSet.length;itr++)
	{
		if(!this.vSet[itr].validate())
		{
			return false;
		}
	}
	return true;
}

function validateEmailv2(email)
{
	var splitted = email.match("^(.+)@(.+)$");
	if(splitted == null) return false;
	if(splitted[1] != null )
	{
		var regexp_user=/^\"?[\w-_\.]*\"?$/;
		if(splitted[1].match(regexp_user) == null) return false;
	}
	if(splitted[2] != null)
	{
		var regexp_domain=/^[\w-\.]*\.[A-Za-z]{2,4}$/;
		if(splitted[2].match(regexp_domain) == null) 
		{
			var regexp_ip =/^\[\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\]$/;
			if(splitted[2].match(regexp_ip) == null) return false;
		}
	return true;
	}
	return false;
}

function V2validateData(strValidateStr,objValue,strError) 
{ 
	var epos = strValidateStr.search("=");
	var  command  = "";
	var  cmdvalue = "";
	if(epos >= 0)
	{
		command  = strValidateStr.substring(0,epos); 
		cmdvalue = strValidateStr.substr(epos+1); 
	}
	else 
	{ 
		command = strValidateStr; 
	} 
	switch(command) 
	{ 
		case "req": 
		case "required": 
		{ 
			if(eval(objValue.value.length) == 0)
			{ 
				if(!strError || strError.length ==0) 
				{ 
					strError = objValue.name + " : Required Field"; 
				}
				alert(strError); 
				return false; 
			}
			break;             
		}
	        case "maxlength":
	        case "maxlen":
		{ 
			if(eval(objValue.value.length) >  eval(cmdvalue)) 
			{ 
				if(!strError || strError.length ==0) 
				{ 
					strError = objValue.name + " : "+cmdvalue+" characters maximum "; 
				}
				alert(strError + "\n[Current length = " + objValue.value.length + " ]"); 
				return false; 
			}
			break; 
		}
	        case "minlength": 
	        case "minlen": 
		{ 
			if(eval(objValue.value.length) <  eval(cmdvalue)) 
			{ 
				if(!strError || strError.length ==0) 
				{ 
					strError = objValue.name + " : " + cmdvalue + " characters minimum  "; 
				}
				alert(strError + "\n[Current length = " + objValue.value.length + " ]"); 
				return false;                 
			}
			break; 
		}
		case "alnum":
		case "alphanumeric":
		{
			var charpos = objValue.value.search("[^A-Za-z0-9 ]"); 
			if(objValue.value.length > 0 &&  charpos >= 0) 
			{ 
				if(!strError || strError.length ==0) 
				{ 
					strError = objValue.name+": Only alpha-numeric characters allowed "; 
				}
				alert(strError + "\n [Error character position " + eval(charpos+1)+"]"); 
				return false; 
			}
			break; 
		}
		case "num": 
		case "numeric": 
		{ 
			var charpos = objValue.value.search("[^0-9]");
			if(objValue.value.length > 0 &&  charpos >= 0)
			{
				if(!strError || strError.length ==0)
				{
					strError = objValue.name+": Only digits allowed ";
				}
				//alert(strError + "\n [Error character position " + eval(charpos+1)+"]"); 
				alert(strError + "\n [Only numeric characters allowed]"); 
				return false; 
			}
			break;               
		}
		case "float": 
		{ 
			var charpos = objValue.value.search("[^0-9\.]");
			if(objValue.value.length > 0 &&  charpos >= 0) 
			{ 
				if(!strError || strError.length ==0) 
				{ 
					strError = objValue.name+": Only digits allowed "; 
				}
				//alert(strError + "\n [Error character position " + eval(charpos+1)+"]"); 
				alert(strError + "\n [Only numeric characters allowed]"); 
				return false; 
			}
			break; 
		}
     	case "alphabetic": 
	     case "alpha":
		{ 
			var charpos = objValue.value.search("[^A-Za-z ]");
			if(objValue.value.length > 0 &&  charpos >= 0) 
			{ 
				if(!strError || strError.length ==0) 
				{ 
					strError = objValue.name+": Only alphabetic characters allowed "; 
				}
				alert(strError + "\n [Error character position " + eval(charpos+1)+"]"); 
				return false; 
			}
			break; 
		}
		case "alnumhyphen":
		{
			var charpos = objValue.value.search("[^A-Za-z0-9\-_]"); 
			if(objValue.value.length > 0 &&  charpos >= 0) 
			{
				if(!strError || strError.length ==0) 
				{ 
					strError = objValue.name+": characters allowed are A-Z,a-z,0-9,- and _"; 
				}
				alert(strError + "\n [Error character position " + eval(charpos+1)+"]"); 
				return false; 
			}
			break;
		}
		case "email": 
		{ 
			if(!validateEmailv2(objValue.value)) 
			{ 
				if(!strError || strError.length ==0) 
				{ 
					strError = objValue.name+": Enter a valid Email address "; 
				}
				alert(strError); 
				return false; 
			}
			break; 
		}
	        case "lt": 
	        case "lessthan": 
		{ 
			if(isNaN(objValue.value)) 
			{ 
				alert(objValue.name+": Should be a number "); 
				return false; 
			}
			if(eval(objValue.value) >=  eval(cmdvalue)) 
			{ 
				if(!strError || strError.length ==0) 
				{ 
				strError = objValue.name + " : value should be less than "+ cmdvalue; 
				}
				alert(strError); 
				return false;                 
			}
			break; 
		}
	        case "gt": 
	        case "greaterthan": 
		{ 
			if(isNaN(objValue.value)) 
			{ 
				alert(objValue.name+": Should be a number "); 
				return false; 
			}
			if(eval(objValue.value) <=  eval(cmdvalue)) 
			{ 
				if(!strError || strError.length ==0) 
				{ 
					strError = objValue.name + " : value should be greater than "+ cmdvalue; 
				}
				alert(strError); 
				return false;
			}
			break; 
		}
		case "regexp": 
		{ 
			if(!objValue.value.match(cmdvalue)) 
			{ 
				if(!strError || strError.length ==0) 
				{ 
					strError = objValue.name+": Invalid characters found "; 
				}
				alert(strError); 
				return false;                   
			}
			break; 
		}
		case "dontselect": 
		{ 
			if(objValue.selectedIndex == null) 
			{ 
				alert("BUG: dontselect command for non-select Item"); 
				return false; 
			} 
			if(objValue.selectedIndex == eval(cmdvalue)) 
			{ 
				if(!strError || strError.length ==0) 
				{ 
					strError = objValue.name+": Please Select one option "; 
				}
				alert(strError); 
				return false;                                   
			} 
			break; 
		}
	}
	return true; 
}