/*following function calls to show any type of validation in any form*/
function dynamic_form_validation(form_object) {
	
	/*fetching the total number of elements from form*/
	total_elements = (form_object.elements.length);
    
	var email_check = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	
	
	/*running loop to check the elements of form one by one*/
	for(var element_count=0; element_count<total_elements; element_count++) {
			
		/*storing element object*/
		var element_object=form_object.elements[element_count];
		
		/*storing element name*/
		var element_id=element_object.id;		
		
		/*storing element value*/
		var element_value=chktrim(element_object.value);		
		
		/*storing element type*/
		var element_type=element_object.type;		
		/*spliting the element namer*/
		var array_split=element_id.split("_");	
		
		
			
		//alert(element_object+', '+element_id+', '+element_value+', '+element_type+', '+array_split[0]);
		if(array_split[0].indexOf('req')!=-1){
			
			if(element_type=='select-one'){
				if (element_object.options[element_object.selectedIndex].value=="")  {
					alert(array_split[2]);
					element_object.focus();
					return false;
				}
			}
			else if(element_type=='checkbox'){
				if (element_object.checked == false)  {
					alert(array_split[2]);
					element_object.focus();
					return false;
				}
			}
			else{
				if(element_id.indexOf('_tinyMCE')!=-1){
					tinyMCE.triggerSave(true,true);
						var mytextarea = tinyMCE.activeEditor.getContent();
					if(trimspaces(mytextarea)==''){
						alert(split_title[2]);	
						//formElem.focus();
						return false;
					}
				}
				else if(element_value.length<1){
					alert(array_split[2]);
					element_object.focus();
					return false;
				}
				else if(element_id.indexOf('_img')!=-1){
					if(element_id.indexOf('.png')==-1 && element_id.indexOf('.gif')==-1 && element_id.indexOf('.jpg')==-1 && element_id.indexOf('.jpeg')==-1){
						alert(array_split[2]);
						element_object.focus();
						return false;
					}
				}else if(element_id.indexOf('_alpha')!=-1){
					var alpha_check = /^([a-zA-Z\s])+$/;
					if(!alpha_check.test(element_value)){
						alert(array_split[2]);
						element_object.focus();
						return false;
					}
				}else if(element_id.indexOf('_Email-id')!=-1){
					if(!email_check.test(element_value)){
						alert(array_split[2]);
						element_object.focus();
						return false;
					}					
				}
				else if(element_id.indexOf('_int_')!=-1){
					if(!parseInt(element_value)){
						alert("Please enter only integer value");
						element_object.focus();
						return false;
					}
				}else if(element_id.indexOf('_web_')!=-1){
					var urlregex = new RegExp("^(http:\/\/www.|https:\/\/www.|ftp:\/\/www.|www.){1}([0-9A-Za-z]+\.)");
					if(!urlregex.test(element_value)){	
						alert("Please enter correct website name for ex. http://www.example.com");
						element_object.focus();
						return false;
					}
				}else if(array_split[1].indexOf('length')!=-1){
					var array_split2=array_split[1].split("-");
					if(array_split2[1]>element_value.length || array_split2[2]<element_value.length){
						alert('Password length should be between '+array_split2[1]+' to '+array_split2[2]+' characters');
						element_object.focus();
						return false;
					}
				}else if(element_id.indexOf('_match_')!=-1){
					if(array_split[3]!='req'){
						var fldname=array_split[3];
					}else{
						var fldname=array_split[3]+'_'+array_split[4]+'_'+array_split[5];
					}
					if(element_value!=document.getElementById(fldname).value){
						alert(array_split[2]);
						//element_object.value='';
						element_object.focus();
						return false;
					}
				}
			}
		}
	}
}
function chktrim(inputString) {
     if (typeof inputString != "string") { return inputString; }
     var retValue = inputString;
     var ch = retValue.substring(0, 1);
     while (ch == " ") { 
       retValue = retValue.substring(1, retValue.length);
       ch = retValue.substring(0, 1);
     } 
     ch = retValue.substring(retValue.length-1, retValue.length);
     while (ch == " ") { 
        retValue = retValue.substring(0, retValue.length-1);
        ch = retValue.substring(retValue.length-1, retValue.length);
     }
     while (retValue.indexOf("  ") != -1) { 
        retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length); // Again, there are two spaces in each of the strings
     }
     return retValue; 
}

function checkall(num,chkall){
	for(k=0;k<num;k++){
		if(chkall.checked==true){
			document.getElementById('chk_'+k).checked=true;
		} else{
			document.getElementById('chk_'+k).checked=false;
		}
	}
}
function randomString(imgname){
	var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz";
	var string_length = 8;
	var randomstring = '';
	for (var i=0; i<string_length; i++) {
		var rnum = Math.floor(Math.random() * chars.length);
		randomstring += chars.substring(rnum,rnum+1);
	}
	document.getElementById(imgname).src= 'http://www.gnstechno.com/world/aic/piegraph.php?captcha='+randomstring;
}